The above studies are just the tip of the iceberg of what's available in terms of scientific research on bananas and their health benefits. The banana is a vitamin-rich fruit and they are grown in many countries with warm climate, but they are native to Southeast Asia and belong to a plant group of Musa. It occurs due to high concentration of potassium in the dog's blood. This condition may lead to heart problems and cardiac arrest in canines. Miller, K. C. (2012). Plasma Potassium Concentration and Content Changes After Banana Ingestion in Exercised Men. Journal of Athletic Training, 47(6), 648–654.

Even though there are no side effects of bananas for dogs when feeding in moderation, those asking themselves, can I give bananas to dogs, should keep the following precautions in mind.Wang X1, Ouyang YY2, Liu J2, Zhao G3. Flavonoid intake and risk of CVD: a systematic review and meta-analysis of prospective cohort studies. Br J Nutr. 2014 Jan 14;111(1):1-11. doi: 10.1017/S000711451300278X. Epub 2013 Aug 16.

The answer is yes – you can give bananas for your dog, and there are many potential health benefits dogs can reap from eating bananas. Just make sure that you feed banana to your dog in moderation.If you've been wondering, “ can I give my dog bananas,” the answer is YES– dogs can eat bananas without any issues, and bananas are non-toxic to dogs. Too much of anything is never good, but for dogs, too much bananas added to the diet can cause gastrointestinal discomfort, and in some rare worst-case scenarios, death. Homemade banana bread ensures there are no artificial sweeteners in it. It’s important because one sweetener, xylitol, is highly toxic to dogs and can cause liver failure. Bananas are loaded with biotin, a vitamin that helps maintain shiny, healthy hair and skin in dogs, according to some studies. 3. Fiber in bananas helps relieve gastrointestinal symptoms. An excess of bananas in a dog’s diet may lead to weight gain, particularly in sedentary dogs who don't burn off the excess amount of calories ( source).